720 



REVOLVING TURRETS. 



ES B 



c Ir 



T^a 



= S2~rn. 



PSSS^o 



^ 



o - - . ~ 



3- c-55? 



~ 73 3 = 2. 



^ ^T r^ ;* - 



fc. ?-? 



c ^ ^ L*5 



?.= : =' 5 5, 



? g.- ; ~ - 



3 =.= _% 



*" S'-g 3 o 



|l r*2? 



B "^ - 2, 



5" o I r-l 



I-" | = ^ g 



g. wl^S, 



2.^271 P 



H 

 O 

 ^ 



Wf 



D - 1 ^3 



05 *- S 2 " 



o ~ ~ = ~ 5 



P 5!* I 



*~ r-" ~ 1^ 



